linux-ext4 - [Bug 14354] Bad corruption with 2.6.32-rc1 and upwards

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 13 Oct 2009 15:12:05 GMT
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 14354] Bad corruption with 2.6.32-rc1 and upwards

http://bugzilla.kernel.org/show_bug.cgi?id=14354





--- Comment #35 from Alasdair G Kergon <agk@...hat.com>  2009-10-13 15:12:04 ---
We used to issue EOPNOTSUPP in response to barriers (so flushing ceased to be
supported when it became barrier-based). 'Basic' barrier support was added
first (2.6.30-rc2), as Mike says, by waiting for relevant I/O to complete. 
Then this was extended (2.6.31-rc1) to send barriers to the underlying devices
for most dm types of dm targets.

To see which dm targets in a particular source tree forward barriers run:
  grep 'ti->num_flush_requests =' drivers/md/dm*c
(set to a non-zero value).

-- 
Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html